- UHRA Home
- Browsing by Author
Browsing by Author "Particle Instruments and diagnostics"
Now showing items 41-60 of 127
-
Fluid-borne Particle Analysers
Centre for Atmospheric and Climate Physics Research; Particle Instruments and diagnostics; Kaye, Paul H.; Hirst, Edwin (2008-10-14)This invention describes an improved method and apparatus for the analysis of fluid borne particles and which is especially suitable for the detection of airborne biological particles. In one aspect of the invention provides ... -
Fluid-borne Particle Detector
Centre for Atmospheric and Climate Physics Research; Particle Instruments and diagnostics; Kaye, Paul H.; Stanley, Warren (2010-12) -
The fluorescence properties of aerosol larger than 0.8 mu m in urban and tropical rainforest locations
Gabey, A.; Stanley, Warren; Gallagher, M.W.; Kaye, Paul H. (2011)UV-LIF measurements were performed on ambient aerosol in Manchester, UK (urban city centre, winter) and Borneo, Malaysia (remote, tropical) using a Wide Issue Bioaerosol Spectrometer, version 3 (WIBS3). These sites are ... -
The fluorescence properties of aerosol larger than 0.8 μm in an urban and a PBA-dominated location
Gabey, A.; Stanley, W.; Gallagher, M.; Kaye, Paul H. (2011)Dual-wavelength Ultraviolet light-induced fluorescence (UV-LIF) measurements were performed on ambient environmental aerosol in Manchester, UK (urban city centre, winter) and Borneo, Malaysia (remote, tropical), which are ... -
A High Speed Particle Phase Discriminator (PPD-HS) for the classification of airborne particles, as tested in a continuous flow diffusion chamber
Mahrt, Fabian; Wieder, Jorg; Dietlicher, Remo; Smith, Helen R.; Stopford, Chris; Kanji, Zamin (2019-06-14)A new instrument, the High-speed Particle Phase Discriminator (PPD-HS), developed at the University of Hertfordshire, for sizing individual cloud hydrometeors and determining their phase is described herein. PPD-HS performs ... -
High-speed scanning laser diffractometer
Kaye, Paul H.; Ludlow, I.K. (1979)A high-speed laser diffractometer is described which employs a novel scanned array or optical light guides to record the angular intensity variation of light scattered radially by a particle throughout an arc of 180 degrees ... -
Ice nucleation in orographic wave clouds : measurements made during INTACC
Field, P.R.; Cotton, R.; Noone, K.; Glantz, P.; Kaye, Paul H.; Hirst, Edwin; Greenaway, Richard (2001) -
Ice particle inter-arrival times measured with a fast FSSP
Field, P.R.; Wood, R.; Brown, P.R.A.; Kaye, Paul H.; Hirst, Edwin; Greenaway, Richard; Smith, J.A. (2003)Ice particle interarrival times have been measured with a fast forward scattering spectrometer probe (FSSP). The distribution of interarrival times is bimodal instead of the exponential distribution expected for a Poisson ... -
An improved low cost apparatus and method for the detection of a fluid-borne particle
School of Physics, Astronomy and Mathematics; Science & Technology Research Institute; Centre for Atmospheric and Climate Physics Research; Particle Instruments and diagnostics; Kaye, Paul H.; Hirst, Edwin (2012-05-03)An apparatus for the detection of a fluid-borne particle (10) in an optically defined particle sensing zone, the apparatus comprising: i) a scattering chamber (40); ii) a means for providing a sample of fluid (34), containing ... -
An improved low-cost apparatus and method for the detection of a fluid-borne particle
School of Physics, Astronomy and Mathematics; Science & Technology Research Institute; Centre for Atmospheric and Climate Physics Research; Particle Instruments and diagnostics; Kaye, Paul H.; Hirst, Edwin (2012-05-02) -
Incidence of rough and irregular atmospheric ice particles from Small Ice Detector 3 measurements
Ulanowski, Joseph; Kaye, Paul H.; Hirst, Edwin; Greenaway, Richard; Cotton, Richard J.; Hesse, Evelyn; Collier, Christopher T. (2014-02-12)The knowledge of properties of ice crystals such as size, shape, concavity and roughness is critical in the context of radiative properties of ice and mixed-phase clouds. Limitations of current cloud probes to measure these ... -
Incidence of rough and irregular atmospheric ice particles from Small Ice Detector 3 measurements
Ulanowski, Zbigniew; Kaye, Paul H.; Hirst, Edwin; Greenaway, Richard; Cotton, Richard J.; Hesse, Evelyn; Collier, Christopher T. (2013)The knowledge of properties of ice crystals such as size, shape, concavity and roughness is critical in the context of radiative properties of ice and mixed phase clouds. Limitations of current cloud probes to measure these ... -
Initial investigation into using Fourier spectra as a means of classifying ice crystal shapes
Stopford, C.; Ulanowski, Z.; Hesse, E.; Kaye, Paul H.; Hirst, E.; Schnaiter, M.; McCall, D. (University of Hertfordshire, 2008)Fast Fourier Transforms of azimuthal light scattering patterns are investigated as a method for classifying cirrus cloud ice crystals. Small Ice Detector Mk. 2 data is compared to modelled reference data of various aspect ... -
An instrument for the classification of airborne particles on the basis of size, shape and count frequency
Kaye, Paul H.; Eyles, N.A.; Ludlow, I.K.; Clark, J.M. (1991) -
An instrument for the simultaneous acquisition of size, shape, and spectral fluorescence data from single aerosol particles
Hirst, E.; Kaye, Paul H.; Foot, V.E.; Clark, J.M.; Withers, P.B. (2004) -
An instrument for the simultaneous acquisition of size, shape, and spectral fluorescence data from single aerosol particles.
Hirst, E; Kaye, Paul H.; Foot, V; Clark, J M; Withers, P B (SPIE, 2004)We describe the construction of a bio-aerosol monitor designed to capture and record intrinsic fluorescence spectra from individual aerosol particles carried in a sample airflow and to simultaneously capture data relating ... -
Integrating genomic binding site predictions using real-valued meta classifiers
Sun, Yi.; Robinson, M.; Adams, R.G.; Kaye, Paul H.; Te Boekhorst, R.; Rust, A.G.; Davey, N. (2009)Currently the best algorithms for predicting transcription factor binding sites in DNA sequences are severely limited in accuracy. There is good reason to believe that predictions from different classes of algorithms could ... -
Intercomparison of Multiple UV-LIF Spectrometers using the Aerosol Challenge Simulator
Forde, Elizabeth; Gallagher, Martin; Walker, Maurice; Foot, Virginia; Attwood, Alexis; Granger, Gary; Sarda-Esteve, Roland; Stanley, Warren; Kaye, Paul H.; Topping, David (2019-12-09)Measurements of primary biological aerosol particles (PBAPs) have been conducted worldwide using ultraviolet light-induced fluorescence (UV-LIF) spectrometers. However, how these instruments detect and respond to known ... -
Introducing phase tracing into a computational method which combines ray-tracing with diffraction on facets
Hesse, Evelyn; Ulanowski, Zbigniew; Clarke, A.J.M.; Havemann, S.; Kaye, Paul H. (University of Bremen, 2005)The viability of introducing phase tracing into our ray tracing with diffraction on facets model is investigated. In order to prove the method, Monte Carlo ray-tracing results for a slit, based on our diffraction formula ... -
Investigation into Single Scattering Properties of Airborne Saharan Dust Particles
McCall, D.; Ulanowski, Z.; Hesse, E.; Stopford, C.; Kandler, K.; Kaye, Paul H. (2008)The phase functions of single mineral dust particles levitated in an electrodynamic balance have been measured. Normalized phase functions and the asymmetry parameter could be determined because nearly the full range of ...